2 † n., plural: bureaux — obsolete
a writing desk with drawers.
The term is no longer in general use to refer to a desk except for particular types of antique furniture (see the 1992 and 1999 quotations). The OED-3's first quotation for 'writing desk' is from 1741, while the meaning of 'chest of drawers', which is marked as American, is first attested in a quotation from 1819. However, often the context give for the quotations does not distinguish clearly which piece of furniture is meant.
The term bureau in this sense is a borrowing from French. Canadians may be more likely to use bureau to mean desk because of English-French bilingualism, but this tendency would be difficult to distinguish from a preservation of the British use of the word.
See W-3, s.v. "bureau" (1a), which marked the term as "Brit", AHD-5, s.v. "bureau" (2), which is marked "Chiefly British". COD-2 labels this meaning as "Cdn & Brit.", for which we find little evidence. OED-3 labels the meaning as "Uncommon in North American usage, owing to the predominance of sense 4 [i.e. 'chest of drawers']. This statement, while correct during the editing of OED-1 [1884 to 1933] no longer fits the facts offered under meaning 1.
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Chart 1: Data from Quebec City on the reported use of bureau by local (1) and no local ties (7) (Source Chambers 2000: Figure 2)